Rika, who works at the same company as her husband, harbors intense disgust toward her superior, Ueda. His tactless remarks, forced drinking parties, and sudden demands for weekend overtime have left her utterly fed up. Even a planned day out with her husband was ruined due to Ueda's selfish schedule, leaving them stranded with no last train home, forcing Rika to stay overnight. Complaining about him as "a rude man," her words ignite his fury, and she is suddenly pinned down by Ueda. Despite her visible revulsion, she is overpowered, crushed beneath his strength, and gradually engulfed in humiliating pleasure. As readers witness her helpless surrender, they'll find themselves breathlessly turning each page.